-er -up b-p b-u bbb bbe bbg bbk bbo bbp bbr bbu be- beb bee beg bek beo bep ber beu bgb bge bgg bgk bgo bgp bgr bgu bkb bke bkg bkk bko bkp bkr bob boe bog bok boo bop bor bou bpb bpe bpg bpo bpp bpr bpu brb bre brg brk bro brp brr bru bub bue bug buk buo bup bur buu ebb ebe ebg ebk ebo ebp ebr ebu eeb eee eeg eek eeo eep eer egb ege egg ego egp egr egu ekb eke ekg eko ekp ekr eku eo- eob eoe eog eok eoo eop eor eou ep- epb epe epg epo epp epr epu erb ere erg erk ero erp err eru eu- eub eue eug eup eur g-p gbe gbg gbk gbo gbp gbr gbu ge- geb gee geg gek geo gep ger geu ggb ggg ggo ggp ggr ggu gkb gko gkp gob goe gog gok goo gop gor gou gpb gpe gpg gpk gpo gpp gpr gpu grb gre grg grk gro grp grr gru gu- gub gue gug guk guo gup gur guu kbb kbe kbk kbo kbp kbr kbu ke- keb kee keg kek keo kep ker kgb kgo kgp kgu kkb kke kkk kkp kkr kku kob koe kog kok koo kop kor kou kpe kpk kpo kpp kpr kpu krg krk kro krp krr kru kub kue kug kuk kup kur kuu ob- obb obe obg obk obo obp obr obu oeb oee oeg oeo oep oer oge ogg ogo ogp okb oke okg okk oko okp okr oku oo- oob oog ook ooo oop oor op- opb ope opg opk opo opp opr or- orb ore org ork oro orp orr oru ou- oue ouk ouo oup our p-p pbb pbe pbg pbk pbo pbp pbr pbu peb pee peg pek peo pep per peu pgb pge pgg pgk pgo pgp pgr pkb pke pkg pko pkp pkr pku pob poe pog pok poo pop por pou ppb ppe ppg ppk ppo ppp ppr ppu prb pre prg prk pro prp prr pru pub pue pug puk pup pur puu rbb rbe rbg rbk rbo rbp rbr rbu re- reb ree reg rek reo rep rer reu rgb rge rgg rgk rgo rgp rgr rkb rke rkg rkk rko rkp rku rob roe rog rok roo rop ror rou rpb rpe rpg rpk rpo rpp rpr rpu rrb rrg rrk rrp rrr rru rub rue rug ruk ruo rup rur ruu ubb ube ubg ubk ubo ubp ubr ubu ueb uee ueg uep uer ugb uge ugg ugk ugo ugp ugr ugu ukb uke ukk ukp ukr uku uob uoe uog uok uoo uop uor up- upb upe upg upk upo upp upr upu ur- urb ure urg urk uro urp urr uru uue uug uur uuu

bbbb bbeb bbpr bbrg bebb bebe bebo beeb beeg beek beep beer begg bego begu beke beko beo- beok beor bepo bere berg berk bero berr beru beuk beur bkpg bkpr bobb bobe bobo bobu boee boeo boep boer boge bogg bogo boke boko boku boob booe boog book boop boor bope bopp bor- bore borg bork boro borr boru boue bouk boup bour bpoe breb bree breg brek breo brep brer brkb brob broe brog brok broo bror brou brrr brue brug brup bubb bube bubo bubu buer bueu buge bugg bugo buke bukk buko buku bur- burb bure burg burk buro burp burr buru ebbo ebbr eber eboe eboo ebor ebpo ebro ebru ebur eeee eeke eerg eero egbe egbu egee eger eggb egge eggo eggp ego- egor egpb egpe egpo egre ekeb ekek eker ekpe ekpo ekur eore epee eper epor eppo eppp eprb epro eprp epub erbb erbe ereb erer erg- ergg ergo erke erob eroe eroo erpe erre erro erub erur euer euge eur- eure euro gbbo gebe geek geep geer gege gegg gego geko geo- geog gepe gerb gere gero geru geue geup gggg ggpo gkrp gobe gobo goer gogo goke goku goog gook goop goor gope gopo gopu gorb gore gorg goro gorp gorr gou- goug gouk goup gour gper gpgp gprp grbr greb gree greg grep greu grob grog grok groo grop gror grou grrr grub grue grug grur gubb gubu guep guer gugb guge gugg gugu gurb gure gurg gurk guro gurr guru kbbb kbbe kbbg kbbk kbbo kbbr kbbu kbeb kbee kbek kbeo kber kbgb kbge kbgg kbgo kbgr kbkb kbkg kbkk kbko kbkr kbob kboe kbok kboo kbpe kbpg kbpk kbpo kbpr kbpu kbrb kbre kbrg kbrk kbro kbru kbub kbue kbuk kbup kbur kbuu kebb kebe kebr kebu keek keep keer kege kegg kegk kegr kekb keke keko keku keok kep- kepe kepu ker- kerb kere kerk kero kerp kerr keru keug keup keur kgbb kgbr kgeb kgeo kggg kggo kggr kgoe kgor kgou kgpe kgpg kgpr kgrb kgre kgrg kgrk kgro kgrr kkbb kkbe kkbg kkbo kkbr kkeg kkgb kkgo kkgr kkkk kkob kkoo kkor kkpk kkrb kkre kkrk kkro kkrr kkup kkuu kobb kobe kobk kobo kobr kobu kogb koge kogg kogo kogu kokb koke kokk koko kokp kokr koku koob koog kook kooo koop koor koou kopb kope kopp kopr kopu korb kore korg kork koro korr koru koub koue kour kouu kpbb kpbe kpbg kpbr kpek kper kpgb kpge kpgg kpgr kpke kpkk kpkr kpob kpoe kpok kpoo kpop kpou kppk kppo kppp kppr kprb kpre kprg kprk kpro kprp kprr kpru kpub kpug kpur krbb krbe krbg krbk krbr kreb kree krek kreo kreu krke krkk krko krkr krku krob kroe krog krok kroo krop kror krpr krpu krrb krre krrg krrk krro krrr krue krug kruk krup krur kubb kube kubo kubr kubu kuek kueu kugb kuge kugo kugr kuke kukk kuku kuok kuoo kuop kupb kupe kupr kupu kurb kure kurk kuro kurr kuru kuub kuuk kuur kuuu o-eo obbo ober obkb oboe obok obor obre obro oegb oere ogb ogbe ogee oger ogge ogog ogou ogpu